-static OSStatus NullInit(
- uint8_t *key,
- uint8_t *iv,
- CipherContext *cipherCtx,
- SSLContext *ctx);
-static OSStatus NullCrypt(
- const uint8_t *src,
- uint8_t *dest,
- size_t len,
- CipherContext *cipherCtx,
- SSLContext *ctx);
-static OSStatus NullFinish(
- CipherContext *cipherCtx,
- SSLContext *ctx);
-
-extern const SSLSymmetricCipher SSLCipherNull;